KINGSONG Self-balancing Unicycle User manual

User manual of King Song Electric Unicycle
www.szkingsong.com
Thanks for purchasing KingSong Self-balancing Unicycle. The user manual below is a quick
and convenient guide to its main functions providing the user with trouble free use for
pleasure, please read the instructions carefully before use. But we can not ensure all types of
emergencies are covered. Therefore, we remind you to drive carefully, to ensure safety driving.

1. Product details
1.1 Diagram for reference
1.2 Product Package
Electric Unicycle x 1 ; Charger x 1; User manual x 1
1.3 Core components
Super magnetic suspension(levitation) motor: Super strong, super power, super silent
Imported Panasonic Lithium battery: Panasonic original battery core, long lifespan
ABS+ BC body shell: Hard anti-friction, not easy to fade
Natural Rubber Tyre
Aviation aluminium alloy foot plate
○
1Back shell
○
2Motor
○
3Press button of battery compartment
○
4Front&Rear LED Lights
○
5Battery compartment
○
6Touch buttons & battery indicator
○
7Power button
○
8Rubber tire
○
9Metal Pedal
○
10 Speaker

2. Safety
There are risks to ride or drive every vehicle. King Song electric unicycle is no exception.
Please ensure this manual is read and understood beforehand, and do pay extra attention
when riding.
2.1 Important
1. Do not make rapid acceleration or deceleration or over incline forward or lean backwards.
2. Do not use King Song electric unicycle if there are any risks in accidental falls. Safety first.
3. When there is alarm of low power, LED indicator flickering with beeping, please decelerate
at once and get down the unicycle in time, to avoid the injury caused by outage.
Please keep in mind deeply: Most of accidents are caused by rapid acceleration or
deceleration, so please avoid that.
2.2 Attention:
1. Please wear helmet, gloves, elbow/knee pads or other protection garments.
2. Please check the device before every ride, to make sure no parts are loose or damaged.
3. When there is crowded pedestrians, please lower your speed similar to their walking speed.
4. When carry the device, please make sure the power is off.
5. Do not put your fingers on the tire, to avoid injuries caused by fingers sucked between the
tire and the plastic shell.
6. Do not ride King Song electric unicycle on highways and busy pavements.
7. Do not ride King Song electric unicycle on busy roads or crowded streets.
8. Do not ride King Song electric unicycle on rough or bumpy surfaces, such as muddy or
pebbled roads.
9. Do not ride King Song electric unicycle on wet, slippery surfaces, especially snowy roads.
10. Do not ride King Song electric unicycle on slopes slanting more than 15°angle.
11. Do not allow children under 12 to use electric unicycle.
12. Do not ride King Song electric unicycle in bleak winter conditions.
13. Countermarch riding is dangerous. Try to avoid countermarch.
Other sudden unpredictable risks may occur during use, please ride with care. King Song
electric unicycle will not be responsible for any injuries caused by misuse of the product.

3.Main Features:
1. Front illuminating &Rear Braking Lights
2. BT Speaker: Activate the BT function of the electric unicycle, search available BT on your
mobile phone, find and match the BT named “King Song”, then you can play music freely
after successfully connected.
3. Removable Battery Compartment: Press down the snap switch , at the same time, pull up
the battery compartment by another hand.
4. APP:
3.4.1 App Download and Connection
3.4.2 Basic Information
Users can check all the detailed information on APP like temperature, mileage, speed,
voltage and so on, which will help you get a better idea of the electric unicycle’s running
status
3.4.3 Riding Mode
Riding mode refers to the ration mode during start-off and breaking. Under play mode, the
pedal will keep still when starting off or breaking. While, under study mode, the pedal will
slant alonging with the gravity center, that is, leaning forward when starting off, leaning
backward when braking. The main difference of the two modes lies in : riding mode is

suitable for long distance travel, which can bring a more comfortable riding experience,
relieve the leg’s fatigue. Play mode is more flexible, can satisfy the group who wants to
perform skills like aerial jumping, also it can avoid pedal scraping when climbing or down
steep hills. You can select the corresponding riding mode in the “Basic Function”menu.
In theory, soft mode is more power saving than aggressive mode.
3.5.4 Calibration alignment
Firstly, Power on the unicycle and keep the unicycle still, connect your mobile phone with
the unicycle, back to the " Basic Function" Menu, Select " Level Calibration", you will hear
continual beeping. Then place the unicycle vertically on the ground, restart it, the
calibration is done if you hear long beeping after 5 times continual beeping. If another 5
times continual beeping followings, it indicates calibration failed.
5. Customized Pedal, comfortable riding
6. Refined Control System Software can be used to different terrain and ensure stable riding
7. Battery Level Indicator: 10 bar LED lights to show battery level, more acurate.
4.Precautions and preparation
4.1 Precautions
4.1.1. Use the auxiliary belt to ensure safety driving
As beginners, can use the auxiliary belt to prevent the unicycle from scraping
Tie the belt to the handle of the unicycle, tread one foot on the treadle, adjust the belt to a
proper length.
When losing the balance, have to jump from the unicycle, you can drag the unicycle with the
belt to protect it from broken.
4.1.2.How to control the balance
The self-balancing unicycle achieves balancing by versus of the gyroscope.
When leaning forward, the unicycle will accelerate; when lean forward, the unicycle will

decelerate to keep the balance between the driver and the device itself.
Like riding bicycle, you have to keep left or right balancing by your body and the riding speed
Do not ride on slippery or bumpy surfaces, friction between the tire and the ground is essential
to keep the balance
4.2.Preparation
Find a proper spot：please don’t ride in the highway or anywhere there are a lot of cars and
peoples, should not ride on the bumpy, gravel roads,
Warm up your body and be equipped with helmets, elbow, knee supporters if needed
Check the battery level, shack the unicycle to avoid potential unsafe factors like looseness,
abnormal sound, push the unicycle by hand to check whether it exists frictions between the tire
and body shell.
Find a friend to assist you if needed
Tie the auxiliary belt to the handle, adjust it to a proper length.
Please don’t speed up and reduce suddenly in order to keep good maintenance.
Don’t lean too much in order to not to fall, speeding is prohibited. In case of falling, given the
priority to body safety.
Refer to the following driving steps to start learning.
4.3 How to use
4.3.1 Start the unicycle
Grasp the handle with one hand, place the unicycle vertically on the ground, and unfold the
two treadles. If the unicycle tilts either forward or backwards after power is switched on, then
wait until it reverts to upright position before riding.
Press the power key to turn on the unicycle, the battery level will illuminate and buzzer will
beep, then the vehicle is ready to use.
We suggest that you push the unicycle forward and backward to get an idea of the intensity of
acceleration and deceleration.
If the unicycle tilts either forward or backward after power is switched on, then wait unit it

reverts to upright position before riding.
4.3.2Try to stand on the unicycle
Stand on the center of the treadle with your preferred foot, so that you can lean your gravity
center to the foot.
Stand up, use the foot on the treadle to control the forward and backward balancing, and lean
your shank on the rubber plate tightly
Gradually lean your gravity center to the foot on the treadle, a triangle support is required with
your shank, foot and the balancing unicycle，otherwise the it’s very difficult to transfer the
gravity center to the unicycle. If you failed to transfer the gravity center, further riding is not
suggested.
4.3.3Go forward
For novice,like riding bicycle, transfer your gravity center to the unicycle, tread the pedal
forward slightly, meanwhile, kick the other foot backward slightly, the unicycle will go forward,
try to keep balance during riding, and gradually put the other foot on the treadle.
For intermediate learner, pay more attention to the following two points: keep at a certain
speed, control the speed through leaning forward and backward. Try to extend the riding
distance by repeated exercises.
4.3.4Turning
We found beginner tends to rotate the upper torso to turn, to improve the efficiency, we
suggest you to make it by adjusting the tilt of treadles.
5.Battery and Charging
5.1 Temperature effect on battery
Battery power will vary with the temperature, mileage per charge will have slight difference
under different temperature, following table is just for your reference.

Temperature（℃）
-20
-10
0
10
20
30
40
50
174Wh using ratio
40%
60%
80%
90%
95%
100%
105%
110%
Mileage/Charge
（Km）
8
12
16
18
19
20
21
22
5.2 Charging
The device has a built-in lithium battery, No extra battery installation is required, just charge
the device when it indicates low battery.
Plug in the power source after inserting the charger plug, this can prevent potential risk to
ensure a safer charger
It takes around 90 mins to get 100% charge, when the red lights turn into green, indicating the
charging is completed.
If not in urgent need, please wait until charging complete before unplugging, because after
charging, the protection circuit will perform flow equilibrium
Battery level: A ten-bar LED indicator is used to indicate battery level. All ten-bar LED will light
up when power level is more than 85% and will go off one by one as the level decreases.
Please check power level before usage to ensure there is enough power for the return trip.
When power level is lower than 5%, all lights will flicker and the buzzer will sound off. The front
part of the treadle will descend to force you to decelerate and eventually stop. Please do not
restart when this occurs to avoid any accidents.
Sustained range will decrease during winter. This is because the battery performance
decreases quickly in cold conditions. In -15℃, for example, battery performance is only about
half in comparison to that in room temperature.
6. Care and Maintenance
6.1 Conservation
Don’t place the unicycle in a wet condition

If left unused, recharge the battery at least once a month to avoid the battery exhausted and
maintain longevity of the battery. Meanwhile, the battery can’t be dismantled arbitrarily, in case
of changing, pls contact us, we will provide you with professional services
Clean the unicycle with wet cloths and detergent, gasoline, solvent or any other chemical
reagent are forbade.
Use the inflation tube to inflate the tire. Without the tube, you will not be able to pump air into
the wheel.
6.2 Change tire
Allen driver and cross screwdriver are require to change tire
Unscrew all the screws on the body shell with cross screwdriver, 7 screws each side.
There are 6 screws on each side under the treadles, unscrew the six hex socket screws on the
opposite side of the charger slot, pls notice that never unscrew the hex socket screws on the
side of the charger slot.
After unscrewing the screws, rotate the shell body until you can dismantle the tire freely, avoid
pulling out the electric cables around the handle area.
After repairing, install the body shell and fix the screws.
7. Specifications
Product Performance
Top speed
around 25 km/h （default setting: 1st beeping level: 18km/h, 2rd beeping level:
19km/h, pedal tilt back:20km/h)
Mileage
18-23km( Depends on the rider's weight, road condition and temperature )
Maximum Gradibility
Around 25°, 60kg riders up to 30°
Battery Set
174Wh,Panasonic lithium battery, with equilibrium, overcharge, over-discharge,
over-current protection
Operating temperature
About -10°-60°
Max Load
120Kg
Charger
Input: AC 80~240 V, Output: 67.2V、2A
Charging time
Around 90mins
Rated Power
500W

Max Power
2000W
Appearance of the weight
Machine size (mm)
447.5mm（H）x 404mm(L）X 164mm（Thickness）
Package Size (mm)
460 mm(H)* 540mm(L)* 230mm(Thickness）
Pedal Distance from
Ground
110mm(without load）
Tire Diameter
Diameter 295mm
Net weight
10.85kg
Display panel
Highlight LED battery indicator
Production measures
Tilting Protection
Average 45°left and right (Motor will stop when over 45°), place the machine
vertically on the ground to restart automatically after crashing, no need to restart
manually.
Speed Limit Protection
Beep when exceed limit speed
Low Battery Protection
Beep when battery lower to 10%, the front of the pedal will rise gradually to lower
the speed until stop
Message
Battery Indicator
Highlight LED to indicate battery level
Battery level
Flicker when battery lower than 5%, LED bar all light up when the battery above
85%, then fade gradually with the battery consumption
Sound Alerting
Buzzer beep when machine falling down to the ground, Beep when powering on,
Continual beep when low battery power protection activated.